Checkpoint 4 1.
Refer to Figure 1.25. Cart B, of mass 350 g, moves on the frictionless linear air track at
2 m. s-' to the left. Cart B strikes cart A, of mass 200 g, travelling in the opposite direction
at 1,2 m. st. After the collision, cart B continues in its original direction at 0,7 m. s',
Why is this considered an isolated system of colliding bodies?
b)
Calculate the velocity of cart A after the collision.
c) How does the change in momentum of each cart compare? Check your answer
using calculations.
Cart B
Cart A
2 m. s1
1.2 m. s 1
S"
200 g
350 g
Fig 1.25: Two carts moving in opposite directions
on a linear air track​

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